Facile synthesis of mesoporous V2O5 nanosheets with superior rate capability and excellent cycling stability for lithium ion batteries

Song, Hang; Zhang, Cuiping; Liu, Yaguang; Liu, Chaofeng; Nan, Xihui; Cao, Guozhong

doi:10.1016/j.jpowsour.2015.06.055

Cited by 100 publications

(57 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the V 2p narrow scanning spectrum (Figure b), the doublet peaks at 517.2 and 524.6 eV with a binding energy gap of 7.4 eV are ascribed to the V 2p 3/2 and V 2p 1/2 , respectively, which match well with the electronic states of V 2 O 5 . Furthermore, the two peaks could be deconvolved into separated peaks, indicating the mixed states of V 5+ and V 4+ in the composite . As for the Sn 3d narrow scanning spectrum for the composite (Figure c), two peaks at 486.3 and 494.7 eV are ascribed to the Sn3d 5/2 , further ascertaining the existence of the tetravalent Sn element in the composite .…”

Section: Resultsmentioning

confidence: 69%

Microtubular SnO₂/V₂O₅ Composites Derived from Cellulose Substance as Cathode Materials of Lithium‐ion Batteries

Huang³

et al. 2017

ChemistrySelect

View full text Add to dashboard Cite

Three‐dimensional microtubular SnO2/V2O5 composites with various SnO2 contents (2.2, 12.1 and 25.2 wt%) were fabricated by a facile sol−gel method employing natural cellulose substance (e. g., filter paper) as template. Thin VxOy/SnO2 gel layer was first deposited onto the surfaces of the cellulose microfibers of the filter paper through a dipping process, and then the as‐prepared VxOy/SnO2/cellulose composites were calcined in air to give the SnO2/V2O5 composites. The obtained composites inherit the morphology of the initial cellulose substance on the micrometer scale and consist of intricate microtubes composed of V2O5 nanorods with SnO2 nanoparticles anchored on the surfaces. Due to the unique three‐dimensional network structure of the composites and the synergetic effect of the V2O5 and SnO2 species, the SnO2/V2O5 composites displayed enhanced electrochemical performances when employed as cathode materials for lithium‐ion batteries. The composite with a SnO2 loading content of 12.1 wt% retained a stable discharge capacity of 126 mAh g−1 after 150 discharge/charge cycles at a current density of 0.1 A g−1. The three‐dimensional microtubular structure inherited from the cellulose substance improves the structural stability of the electrode materials and facilitates the diffusion of lithium ions, and the existence of SnO2 with an appropriate loading content enhances the conductivity of the composites.

show abstract

Section: Resultsmentioning

confidence: 69%

Microtubular SnO₂/V₂O₅ Composites Derived from Cellulose Substance as Cathode Materials of Lithium‐ion Batteries

Huang³

et al. 2017

ChemistrySelect

View full text Add to dashboard Cite

show abstract

“…Figure 5a illustrates a synthesis route to fabricate V 2 O 5 nanosheets. [87] Using this method, NH 4 V 4 O 10 nanosheets with the thickness of 20 nm (Figure 5b) have been firstly synthesized. NH 4 V 4 O 10 with both V 4+ and V 5+ ions can be reduced by oxalic acid or other weak reducing agents (e.g., NH 4 OH) from NH 4 VO 3 .…”

Section: One-dimensional V 2 O 5 Nanostructuresmentioning

confidence: 99%

Recent Advances in Nanostructured Vanadium Oxides and Composites for Energy Conversion

Liu

Tang

et al. 2017

Advanced Energy Materials

227

127

View full text Add to dashboard Cite

Vanadium oxides are known for their multioxidation states and diverse crystalline structures. Owing to their excellent interactions with molecules or ions, outstanding catalytic activities, and/or strong electron–electron correlations, nanostructured vanadium oxides have been extensively studied for energy conversion in the recent years. Here is a review of the recent advances in the development of nanostructured vanadium oxides and their applications. The synthesis strategies and structural properties of various vanadium oxide nanostructures, including vanadium dioxide (VO2), vanadium pentoxide (V2O5), and others, are summarized. The applications of vanadium oxides in energy conversion are discussed, focusing on three important types of energy sources: chemical energy (LIBs, pseudocapacitors and fuel cells), solar energy (photovoltaics and photocatalytic hydrogen evolutions), and heat (thermoelectric generation). Finally, conclusion with our remarks on the prospects of nanostructured vanadium oxides in energy conversion are provided.

show abstract

“…They tried to enhance the electrochemical performance of the LTO by combining the advantages of both grain boundaries and oxygen vacancies. Furthermore, Song et al presented a new generic green method to obtain mesoporous V 2 O 5 nanosheets, as illustrated in Figure D. NH 3 VO 3 underwent a hydrothermal reaction with oxalic acid dihydrate at 180 °C to prepare ultrathin NH 4 V 4 O 10 nanosheets.…”

Section: Synthesis Strategymentioning

confidence: 99%

Section: Synthesis Strategymentioning

confidence: 99%

See 1 more Smart Citation

Synthesis and Progress of New Oxygen‐Vacant Electrode Materials for High‐Energy Rechargeable Battery Applications

Wang

Xiao

et al. 2018

Small

View full text Add to dashboard Cite

During the last few years, a great amount of oxygen-vacant materials have been synthetized and applied as electrodes for electrochemical storage. The presence of oxygen vacancies leads to an increase in the conductivity and the diffusion coefficient; consequently, the controllable synthesis of oxygen vacancy plays an important role in improving the electrochemical performance, including achieving high specific capacitance, high power density, high energy density, and good cycling stability of the electrode materials for batteries. This review mainly focuses on research progress in the preparation of oxygen-vacant nanostructures and the application of materials with oxygen vacancies in various batteries (such as lithium-ion, lithium-oxygen, and sodium-ion batteries). Challenges related to and opportunities for oxygen-vacant materials are also provided.

show abstract

Facile synthesis of mesoporous V2O5 nanosheets with superior rate capability and excellent cycling stability for lithium ion batteries

Cited by 100 publications

References 55 publications

Microtubular SnO₂/V₂O₅ Composites Derived from Cellulose Substance as Cathode Materials of Lithium‐ion Batteries

Microtubular SnO₂/V₂O₅ Composites Derived from Cellulose Substance as Cathode Materials of Lithium‐ion Batteries

Recent Advances in Nanostructured Vanadium Oxides and Composites for Energy Conversion

Synthesis and Progress of New Oxygen‐Vacant Electrode Materials for High‐Energy Rechargeable Battery Applications

Contact Info

Product

Resources

About

Facile synthesis of mesoporous V2O5 nanosheets with superior rate capability and excellent cycling stability for lithium ion batteries

Cited by 100 publications

References 55 publications

Microtubular SnO2/V2O5 Composites Derived from Cellulose Substance as Cathode Materials of Lithium‐ion Batteries

Microtubular SnO2/V2O5 Composites Derived from Cellulose Substance as Cathode Materials of Lithium‐ion Batteries

Recent Advances in Nanostructured Vanadium Oxides and Composites for Energy Conversion

Synthesis and Progress of New Oxygen‐Vacant Electrode Materials for High‐Energy Rechargeable Battery Applications

Contact Info

Product

Resources

About

Microtubular SnO₂/V₂O₅ Composites Derived from Cellulose Substance as Cathode Materials of Lithium‐ion Batteries

Microtubular SnO₂/V₂O₅ Composites Derived from Cellulose Substance as Cathode Materials of Lithium‐ion Batteries